Save Heating Costs Airbnb

You open the utility bill in February and your jaw drops. The cabin sat empty for eleven nights last month and the gas bill still came in north of $400. Your thermostat was holding 68 the entire time because the last guest cranked it up before they left. This is the exact moment most hosts realize they need to save heating costs at their Airbnb in a more deliberate way — not by being stingy with guests, but by stopping the home from heating empty rooms for empty nights. The good news is that fixing this does not require a new HVAC system, a smart-home degree, or guilting your guests into wearing sweaters. It needs one decent smart thermostat, a clear setback temperature for vacant nights, and a small routine that fires the moment a guest checks out.

This guide walks through the exact setup hosts use to drop heating bills 15 to 30 percent in cold months without a single guest complaint. We will cover what gear you need, what setback temperature is actually safe, how to schedule it around your booking calendar, and the small mistakes that quietly undo all your savings. If you want the wider playbook first, our overview on how an Airbnb energy saving thermostat pays for itself in one season is a good companion read.

Who This Is For

This is for the host running one to five short-term rentals who pays the heating bill out of pocket and is tired of watching gas, propane, or electric heat burn through profit during vacant stretches. If you are managing a property remotely — mountain cabin, beach house, lake place, or just a unit across town — this matters even more, because you are not stopping by to manually nudge the thermostat between guests.

If your property is in a climate that drops below freezing, this is not just about saving money. It is also about not running pipes warm enough to be safe while spending as little as possible above that line. We will treat freeze risk as a hard floor, not an optional setting.

Where Heating Money Actually Leaks Out

Before buying anything, understand where the bill is coming from. In most short-term rentals, the wasted heating dollars come from three predictable places.

Guests leaving the heat cranked up at checkout. They set it to 74, leave at 10am, and the next guest does not arrive until tomorrow night. That is 36 hours of full-bore heating an empty house. A simple automatic thermostat reset after checkout kills this leak in one rule.
Long vacant stretches between bookings. Shoulder season in a ski town, midweek gaps, the week after New Year — the home holds 70 because you forgot to change the schedule manually. A standing Airbnb vacant mode for the thermostat takes the manual step off your plate.
Doors and windows left open. Cleaners air out the place, then a sticky window stays cracked for two days while the furnace fights the outside air.

A smart thermostat with the right routines fixes the first two automatically. Door and window sensors handle the third. You do not need all of it on day one, but the thermostat is the single highest-return purchase you can make for your heating bill.

Recommended Gear and Setback Temperatures

Any of the mainstream smart thermostats will do this job. The Ecobee Premium, the Nest Learning Thermostat (4th gen), and the Honeywell Home T9 all support a remote app, schedules, and geofencing-style modes. The Ecobee Premium ships with a SmartSensor that you can drop in a cold guest bedroom, the Nest is the cleanest install for a typical 24V forced-air system, and the Honeywell T9 has the best multi-sensor coverage if your floor plan is sprawling. If your system is a heat pump or has multiple stages, double-check compatibility with your specific HVAC before buying. For most forced-air gas furnaces, all three work fine.

Add a couple of remote room sensors if your home has a cold corner the main thermostat does not see — a basement bedroom, a finished attic, an addition. Ecobee includes them with most kits and Honeywell sells them separately. The point is to make sure no single room drops dangerously cold while the hallway thermostat reads a comfy 60.

For a real-world target during vacant stretches, here is the cheat sheet most hosts settle on after a winter or two:

Climates that never freeze: 58 to 60 between guests is fine.
Climates with regular freezes: 55 is the conservative floor. Below that you start risking pipes in exterior walls.
Properties with no insulation or known freeze-prone plumbing: Hold 60 minimum, period. The savings are not worth a burst pipe claim.

The savings come from the difference between 70 and 58, not from chasing 50. Going from a constant 70 to a vacant setback of 60 captures most of the upside while keeping the home safe.

Step-By-Step Vacancy Setup

Here is the routine to build once and let run for the rest of the season. The exact menu names vary slightly between thermostat brands, but the logic is the same. For the deeper between-stays version with calendar triggers, see our walkthrough on building a smart thermostat schedule between guests.

In the Ecobee, Nest, or Honeywell Home app, create three modes: Guest (heat to 68, cool to 74), Vacant (heat to 60, cool to 80), and Cleaning (heat to 66, cool to 76).
Build a recurring schedule that defaults to Vacant. This is the safety net — if any other automation fails, the home falls back to vacant temps, not 75.
The afternoon before each check-in, switch the thermostat to Guest mode so the home is comfortable on arrival. Most hosts wire this to a calendar-triggered thermostat automation tied to checkout and check-in events, but you can also use a phone reminder and one tap in the app.
At checkout time, force the thermostat back to Cleaning mode for two to three hours so your turnover team is not freezing, then have it drop into Vacant for the rest of the gap.
Lock the thermostat or limit the guest-facing temperature range so a guest cannot set it to 78 and leave. Most smart thermostats have a temperature-range limit setting; cap heat at 72 and cooling at 68.

If you use a property management tool that exposes your booking calendar, you can wire the Vacant-to-Guest swap directly to your check-in time. If not, a simple weekly review of upcoming bookings and a few scheduled changes in the thermostat app gets you 90 percent of the benefit. Hosts running multiple doors usually graduate to a full Airbnb HVAC automation routine that handles fans, humidity, and heat together.

What To Tell Guests

Do not hide the fact that you are managing the thermostat. A short note in your house manual prevents 90 percent of the friction. Something like: “The thermostat is set to 68 for your stay. You can adjust it between 64 and 72 anytime. The system automatically adjusts after checkout for energy savings — please don’t worry about turning it down when you leave.”

Two important things in that wording. First, you tell guests they do not need to fiddle with it on their way out, which removes the awkward “should I turn this off?” moment. Second, you frame the range as comfort-first, not as restriction. Most guests will never push past 70 if they are warm enough at 68.

Common Mistakes That Cost Hosts Money

Setting vacant temps too low. Holding 50 in a poorly insulated home does not save much more than 60, and the recovery time before the next guest can take half a day. You also flirt with freeze damage.
Forgetting the pre-arrival warmup. A 60-degree home takes hours to reach 68 in cold weather. Schedule the warmup at least four hours before check-in, six in older homes.
Letting cleaners override and forget. Cleaners often bump the heat way up while they work. Either include a “reset thermostat to Vacant” line in their checklist, or set an automation that forces it back two hours after their scheduled departure.
Ignoring back-to-back bookings. If you have a same-day turnover, do not drop into vacant mode at all — just go straight from Guest to Cleaning to Guest.
No fallback for offline thermostats. If your wi-fi drops, the schedule still runs because it is stored on the device. Confirm that during setup. If your thermostat needs cloud connectivity for schedules, pick a different one.

Host Checklist

Smart thermostat (Ecobee Premium, Nest Learning, or Honeywell T9) installed and connected to your phone app.
Three modes built: Guest, Vacant, Cleaning.
Vacant setback chosen based on your climate and pipe situation.
Guest range capped (e.g., 64 to 72 for heat).
Pre-arrival warmup scheduled four to six hours before check-in.
Cleaner instructions include not touching the thermostat at exit.
House manual line explaining the setup to guests.
Test run done with the home empty for at least 24 hours.

Frequently Asked Questions

How much can I really save by lowering vacant heating?

Most hosts who switch from a held 70 to a vacant setback in the high 50s see 15 to 30 percent off their heating bill in cold months. The exact number depends on how often the place is empty, your climate, and your home’s insulation. Ski-area cabins with frequent midweek gaps see the biggest swings. Homes booked nearly every night see less, but the savings still pay for the thermostat in one season.

Is it safe to drop the heat that low between guests?

It is safe down to about 55 in most homes with reasonable insulation and indoor plumbing. Below that, you start risking frozen pipes, especially in exterior walls, garages, or unheated crawlspaces. If your property has had freeze problems before, set 60 as a hard floor and add a separate freeze sensor near the most vulnerable plumbing for an extra alert.

Will guests complain about a cold house when they arrive?

Only if you forget to warm it up in time. The pre-arrival warmup is the most important automation in this whole setup. Give the system enough lead time — four hours for a tight, modern home, six or more for an older one or a property with high ceilings — and guests walk into a comfortable house every time.

What if a guest cranks the heat way up during their stay?

Cap the allowed range in the thermostat settings. Ecobee, Nest, and Honeywell Home all let you set a maximum heating setpoint, so even if a guest mashes the up arrow, it stops at whatever you decide — commonly 72 or 73. This is not punitive; it is just a sane upper bound, and you can always raise it for a specific guest if they ask.

Do I need to disclose that I control the thermostat remotely?

Yes, and you should. Mention in your listing and house manual that the home uses a smart thermostat with energy-saving automations. You do not need to spell out every routine, but guests should know the system adjusts itself. Transparency here prevents the worst-case scenario, which is a guest discovering it themselves and writing a review about being “watched.”

Next Steps

Pick a smart thermostat this week, install it on your next turnover, and build the three modes before your next vacant stretch. The savings start the first night the house sits empty. Once the heating side is dialed in, the same playbook works for the cooling season — and a tight schedule between guests is what ties it all together.